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@@ -160,7 +160,7 @@ module ActionController
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         s << "\n#{expiry_statement}"
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       end
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-      def interpolation_chunk(value_code = "#{local_name}")
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+      def interpolation_chunk(value_code = local_name)
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         "\#{URI.escape(#{value_code}.to_s, ActionController::Routing::Segment::UNSAFE_PCHAR)}"
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       end
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@@ -231,7 +231,7 @@ module ActionController
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       end
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       # Don't URI.escape the controller name since it may contain slashes.
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-      def interpolation_chunk(value_code = "#{local_name}")
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+      def interpolation_chunk(value_code = local_name)
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         "\#{#{value_code}.to_s}"
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       end
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@@ -251,7 +251,7 @@ module ActionController
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     end
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     class PathSegment < DynamicSegment #:nodoc:
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-      def interpolation_chunk(value_code = "#{local_name}")
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+      def interpolation_chunk(value_code = local_name)
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         "\#{#{value_code}}"
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       end
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